Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6706172 | Stormwater filter assembly for catch basin grates | — | 2004-03-16 |
| 6551505 | Environmental filter | Andrew W. Chinn, Geralde M. Chinn | 2003-04-22 |
| 6059964 | Collapsible catch basin grate filter assembly | — | 2000-05-09 |
| 6010622 | Environmental filter | Andrew W. Chinn, Geralde M. Chinn | 2000-01-04 |
| 5954952 | Stormwater catch basin filter assembly | — | 1999-09-21 |
| 5725782 | Environmental filter | Andrew W. Chinn, Geralde M. Chinn | 1998-03-10 |
| 5632888 | Environmental filter | Andrew W. Chinn, Geralde M. Chinn | 1997-05-27 |